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SEGMENT INFORMATION (Schedule of Assets, Depreciation and Amortization, and Capital Expenditures by Segment) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | $ 114,675 | $ 103,287 | $ 111,995
Depreciation and amortization | 4,372 | 4,185 | 3,941
Expenditure for segment assets | 3,822 | 4,161 | 3,884
OEM of Heat Transfer Solutions and Aviation Accessories [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | 29,149 | 26,171 | 29,411
Depreciation and amortization | 1,601 | 1,476 | 1,299
Expenditure for segment assets | 1,600 | 2,665 | 1,769
MRO Services for heat transfer components and OEM of heat transfer solutions [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | 31,031 | 33,794 | 35,067
Depreciation and amortization | 1,031 | 1,044 | 1,029
Expenditure for segment assets | 1,180 | 588 | 866
MRO services for Aviation Components [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | 34,264 | 27,687 | 27,276
Depreciation and amortization | 786 | 705 | 653
Expenditure for segment assets | 803 | 764 | 847
Overhaul and coating of jet engine components [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | 10,194 | 11,100 | 11,915
Depreciation and amortization | 954 | 960 | 960
Expenditure for segment assets | 239 | 144 | 402
Amounts not allocated to segments [Member] |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |
Total assets | 10,037 | 4,535 | 8,326
Depreciation and amortization |  |  |
Expenditure for segment assets |  |  |

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- Definition Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets. + References No definition available. + Details
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